i.MX ProcessorsのトピックSabreSD ENET_REF_CLK AC coupling https://community.nxp.com/t5/i-MX-Processors/SabreSD-ENET-REF-CLK-AC-coupling/m-p/344595#M47522 <HTML><HEAD></HEAD><BODY><P>Hi community,</P><P></P><P>is there another reason for AC coupling at the ENET_REF_CLK input in SabreSD-design than adjusting the voltage levels?</P><P></P><P>In my design I want to use 2.5V for all the Ethernet-related stuff (NVCC_ENET, NVCC_RGMII and VDDIO of the PHY) so connecting ENET_REF_CLK directly (only with a series resistor at the PHY's output) should be OK - or did I miss something?</P><P></P><P></P><P>Best regards,</P><P>Martin</P></BODY></HTML> Tue, 24 Mar 2015 12:28:07 GMT mahi 2015-03-24T12:28:07Z SabreSD ENET_REF_CLK AC coupling https://community.nxp.com/t5/i-MX-Processors/SabreSD-ENET-REF-CLK-AC-coupling/m-p/344595#M47522 <HTML><HEAD></HEAD><BODY><P>Hi community,</P><P></P><P>is there another reason for AC coupling at the ENET_REF_CLK input in SabreSD-design than adjusting the voltage levels?</P><P></P><P>In my design I want to use 2.5V for all the Ethernet-related stuff (NVCC_ENET, NVCC_RGMII and VDDIO of the PHY) so connecting ENET_REF_CLK directly (only with a series resistor at the PHY's output) should be OK - or did I miss something?</P><P></P><P></P><P>Best regards,</P><P>Martin</P></BODY></HTML> Tue, 24 Mar 2015 12:28:07 GMT https://community.nxp.com/t5/i-MX-Processors/SabreSD-ENET-REF-CLK-AC-coupling/m-p/344595#M47522 mahi 2015-03-24T12:28:07Z Re: SabreSD ENET_REF_CLK AC coupling https://community.nxp.com/t5/i-MX-Processors/SabreSD-ENET-REF-CLK-AC-coupling/m-p/344596#M47523 <HTML><HEAD></HEAD><BODY><P>HI Martin</P><P></P><P>I agree with you: with the same voltage for all the Ethernet-related stuff</P><P>connecting ENET_REF_CLK directly is OK.</P><P></P><P>Best regards</P><P>igor</P><P>-----------------------------------------------------------------------------------------------------------------------</P><P>Note: If this post answers your question, please click the Correct Answer button. Thank you!</P><P>-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Wed, 25 Mar 2015 01:01:26 GMT https://community.nxp.com/t5/i-MX-Processors/SabreSD-ENET-REF-CLK-AC-coupling/m-p/344596#M47523 igorpadykov 2015-03-25T01:01:26Z